M 4.7 in China on 25 May 2015 21:22 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 4.7M
Depth: 10 Km
Lat/Lon: 22.8963 , 120.9296
Event Date: 25 May 2015 21:22 UTC
26 May 2015 05:22 Local
Exposed Population:
7052509 people within 100km
Source: NEIC
Inserted at: 25 May 2015 21:47 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.1 0.1
Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1081989 0.1 25 May 2015 21:22 4.7M, 10km N/A 7.1 million (in 100km) 00:24 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
The episode that has the last updated information.
* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in China , Province of Taiwan (population 22,456,987) . The nearest places are Ping-tung, and T'ao-lin.

Radius Population
100 km 7.1 million people
75 km 4.9 million people
50 km 610000 people
20 km 8800 people
10 km <1000 people
5 km <1000 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Taiwan China 22.5 million people

Affected populated places

Name Region Province Country City class Population Distance
T'ao-lin T'ai-tung Taiwan Village - 1 km
Ping-tung P'ing-tung Taiwan Major city - 53 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Feng Nin 42 Civ. Paved Yes 7900 24 km
Taitung TTT 37 Mil. Paved No 11000 28 km

Ports

Name LOCODE Country Distance
Tai Tung Taiwan 22 km
Tai Nan Taiwan 63 km

Dams

Reservoir Dam Name River Year Distance
Tsengwen Tsengwen 1973 56 km

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.